Lesson Plan
Curated OER

Study Buddies: Lines, Line Segments, and Angles

For Teachers 2nd - 3rd
In this math worksheet, learners will work with a coach to name various lines, line segments, and angels. Students will answer riddles to match pictures. Notes are provided for the coach.
Worksheet
Curated OER

Segments and Rays

For Students 9th - 10th
In this segments and rays worksheet, students sketch relationships, find the missing measurements, and find coordinates of the midpoint of segments on a number line.
Lesson Plan
Curated OER

Exploring Harmonic Conjugates

For Teachers 9th - 10th
High schoolers investigate harmonic conjugates using Cabri Software or the Ti Calculator to analyze harmonics. They explore different angles measurements as they move their circles around and solve problems.
Lesson Plan
EngageNY

Informal Proofs of Properties of Dilations

For Teachers 8th Standards
Challenge the class to prove that the dilation properties always hold. The instructional activity develops an informal proof of the properties of dilations through a discussion. Two of the proofs are verified with each class member...
Unit Plan
Mathematics Vision Project

Geometric Figures

For Teachers 10th - 12th Standards
Logical thinking is at the forefront of this jam-packed lesson, with young mathematicians not only investigating geometric concepts but also how they "know what they know". Through each activity and worksheet, learners wrestle with...
App
Bytes Arithmetic

Geometry Pad+

For Students 6th - 10th Standards
Graphing paper, pencil, ruler, protractor, and compass, all get replaced or supplemented with this dynamic geometry application. Here, you can create, move, and scale many different shapes, as well as, explore and change their properties...
Worksheet
Curated OER

Lines and Angles

For Students 6th - 8th
In this math activity, students find the information concerning the line segments and angles. They define the complimentary and supplementary angles.
Worksheet
Curated OER

Geometry, Lines and Angles

For Students 5th - 7th
For this lines and angles worksheet, students answer 10 multiple choice questions about lines and angles.
Lesson Plan
Curated OER

Searching for Angles and Lines

For Teachers 6th - 8th
Middle schoolers work to find and reinforce concepts related to lines and angles. They identify the characteristics of shapes that have one, two, and three dimensions. The students also work on definitions related to the geometry of shapes.
Lesson Plan
EngageNY

Definition of Rotation and Basic Properties

For Students 8th Standards
Examine the process of rotating images to visualize effects of changes to them. The fifth lesson of 18 prompts pupils to rotate different images to various degrees of rotation. It pays special attention to rotations in multiples of 90...
Lesson Plan
Curated OER

Joseph Stella Art: Line Designs

For Teachers 1st - 5th
Students discover the focal point in pictures and create their own images using lines and space.  In this art analysis lesson plan, students create a black dot on a white paper which becomes a focal point for the lines the student...
Worksheet
Curated OER

Line, Line Segments and Rays

For Students 5th - 6th
In this geometry learning exercise, students identify items as either lines, line segments or rays by checking the appropriate box beneath each figure.
Worksheet
Curated OER

Segments and Rays Homework

For Students 9th - 10th
In this geometry worksheet, students identify segments and rays using sketches. They sketch intersection to a plane and describe the relationship of the segment and ray as it related to the intersection. There are 15 questions.
Lesson Plan
Curated OER

Corresponding Sides and Angles of Similar Triangles

For Teachers 9th - 10th
Students differentiate between corresponding sides ad angles of two triangles. In this geometry instructional activity, students identify the differences as well as the similarities between two triangles. They differentiate between...
Worksheet
Curated OER

Geometry

For Students 7th - 8th
In this line and angles activity, students explore basic geometry vocabulary.  They classify polygons.  Students determine the area and perimeter of given shapes.  They examine the parts of a circle, find volume and...
Lesson Plan
Curated OER

What's The Idea?

For Teachers 6th
Sixth graders explore line segments, rays, parallel, perpendicular and intersecting lines. The teacher discusses, with the class, real life items that represent each geometric idea studied. They use cotton balls, strings and popsicle...
Lesson Plan
Curated OER

Concurrent Lines in Triangles

For Teachers 9th - 12th
Students explore the concept of concurrent lines in triangles. In this concurrent lines in triangles lesson, students work in groups to investigate properties of concurrent lines in acute, right, and obtuse triangles. Students use a...
Lesson Plan
Curated OER

Geometry in the Real World

For Teachers 8th
Eighth graders complete a unit of lessons on basic geometry concepts. They participate in a variety of activities, culminating in a project that involves publishing a booklet or a poster that presents the major geometry concepts from the...
Lesson Plan
Curated OER

Identifying Figures

For Teachers 6th - 10th
In this identifying figures worksheet, students match 10 figures to the correct vocabulary terms that include lines, angles, shapes, and segments.
Lesson Plan
EngageNY

Dividing the King’s Foot into 12 Equal Pieces

For Students 9th - 10th Standards
Apply, apply, apply! A measurement lesson applies a number of concepts to help learn a new construction. Scholars learn to divide a segment into n equal parts using a method that uses the Side Splitter Theorem and a method that...
Printables
Houghton Mifflin Harcourt

Unit 6 Math Vocabulary Cards (Grade 3)

For Teachers 3rd
A set of 49 math vocabulary cards ranges from angle to irregular polygon to parallel lines. Each sheet contains two cards: one with the word printed in bold text and the other with the definition.
Lesson Plan
Curated OER

Define Geometry Terms

For Teachers 3rd - 5th Standards
The Common Core is intended to help all children meet high academic standards. Here is a Common Core designed lesson that is intended for learners with communication or language difficulties. The lesson is written in a narrative style...
Lesson Plan
Curated OER

New Angle on Forest Ecology

For Teachers 7th - 12th
Students measure and calculate the angle of the sun. They compare the leaf types on the north and south to compare the effects of the sun on the type of vegetation. They complete the activities inside the classroom or on a trip to a...
Lesson Plan
Curated OER

The Building Blocks of Geometry

For Teachers 5th
Fifth graders explore geometric building blocks in the real world in order to describe the characteristics and relationships of points, lines, line segments, rays, and planes. This is the first lesson plan in a series of lessons in...

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